Dyeing apparatus.



H.` WINDRATH & Hf BICKEN.'

DYBI'NG APPARATUS. vAPPLIOATION FILED Nov. 2, 1909.

Patented Apr. 2, 1912.

2` SHEETS-SHEET 1.

H. WINDRATH & H. EICKEN.

' DYEING APPARATUS. APPLIOATION PILEDINOV. 2. 1909.

1,021,811. Patented Apr.2,1912.

2 SHEETS-SHEET 2.

A Y ffm/672M- 5M 1 fm@ ma@ /MMM HERMANN WINDRATI-I AND HUBERT EICKEN, OFGREVENBROICI-I, GERMANY.

DYEING APPARATUS.

Specication of Letters Patent.

Patented Apr. 2, 1912.

Application led November 2, 1909. Serial No. 525,901.

To all whom it may concer/n:

Be it known that we,HERMANN WINDRATH and HUBERT EIGKEN, subjects of theGerman Emperor, and residents of Grevenbroich,

5 Germany, have invented vcertain new and useful Improvements in andRelating to Dyeing Apparatus, of ywhich the following is aspecification.

This invention relates yto a dyeing apparatus comprising a carrier forthe textile materials and a bell for removing the air from the materialto be dyed.

The pressing apparatus differs from others in the use of suction, ratherthan pressure for causing the dyeing liquid to circulate through thefabric being dyed. It is well'- known that fluid, under pressure, tendsto separate the members of the vessel or pipe containing it; and thatthe same, under suction, tends to more closely unite said members. It isalso known that mechanical fastening means are essential elements in afluid-tight joint, subjected to internal pressure, and that in order todisunite such joints, physical force is essentially exerted. To thecontrary: where suction is exerted within a hollow tube or chamber,having joints, the tendency is to bind the joints more closely andfirmly together. The principle of suction is therefore employed in thepresent invention, for the two-fold purpose of providing a joint, ofmaximum eiiiciency, between the tank, which holds the liquid dye, andthe pipes through which the dye circulates; and to provide such a joint,that requires only a release from suction and from the pressureresulting from gravity, for disconnecting the joint.

We attain` the foregoing objects by t-he mechanism illustrated in theaccompanying drawings, in which, similar reference characters designatesimilar parts, and inv Figure 1 is a view in elevation of the preferredform and embodiment of our invention, certain parts being shown insection. Fig. 2 is a top, plan view of the tank, the pump andconnections.

Referring now to the drawings: A carrier A, is provided for holding thematerial, to

be dyed which is here represented, by spools or bobbins of yarn or thelike, at a, which are hereinafter to be referred to as textile. Themanner in which this textile is held by the carrier, forms no part ofthis invention and will not be described. The carrier A is havinganannular opening ai, therein. Intermediate ofthe cylinder, is thehorizontally disposedvpartition' a having an opening centrally thereof;and a pipe S, registering with the opening, extends to the samehorizontal plane as that of the bottom of Raising At P2 is indicated afluid-tight joint between fthebell and the carrier. A tank F, ofsuflicient size to receive the bell, has openings' 'C and E through thebottom thereof, and

adapted to register with the .opening d and S, respectively, when thebell and carrier jare lowered into the tank F. A suction pump indicatedat G, isconnected with the openings E and G bysuction and delivery`pipes E and C, respectively, so that when the openings a5 and S" are.yin registration with the openings C and E', and the bottoms of the pipeS and'ca'rrier B rest upon the bottom yof the tank, communication isestablished betweenthe `pump and carrier, which, latter, is providedwithperforations a2 andai. The flexible pipe Z communicates with theinterior vof .the bell and with a vacuum tank, indicated at V, in whicha .vacuum may be sustained by `any proper `means. A st-op cock'I-I isyinterposed between thev .pipe Z and the vacuumI tank, for establishingor interrupting suction through the In operat-ion, the carrier B isfirst loaded with textile, and the tank F is supplied with the properamount of dyeing fluid. The

bell P is then seated on the carrier as shown. The bell and carrierarethen lowered into the tank, until they are seated on the bottomthereof, and the openings S and cl, register with the openings E and C',respectively. During the operation of loweringthe bell, the cock H isopened, so that the air therein gives place to the dyeing liquid. yThesuction, produced by the vacuum means, should be sufficient to so rarefythe air in the bell so that the dyeing liquid has free access topenetrate between the fibers of the textile, and thus assure a uniformcoloring of the same. This vacuum also causes the external lpreferablyof cylindrical form, the top of i kthe cylinder being closed, and thebottom pressure of the air to seat the carrier more firmly on the bottomof the tank and produces a tighter connection between the openings S, CZand E, C. This tightening effect is increased by the action of thesuction pump G, which causes the dyeingliquid to circulate through thepipes E and C, and through the carrier B pipe S an annular space D, inthe direction indicated by the arrows, owing to the outlet S being lesscommodious than the inlet d and therefore offering greater resistance tothe downward current than is offered to the upward current. Now,considering the bell and carrier to be in the lowered posit-ion, andresting on the bottom of the tank, the bell and carrier being full ofthe dyeing liquid: the suction, from the pump, draws the liquid throughthe pipes S and E and delivers it again into the tank, through the pipeE and annular space D, whence it passes through the perforations a2,between and through the textile and back through perforations a3, and isagain sucked down through the pipe S. Thus a continual circulation ofthe liquid is maintained and a continual suction is exerted from twosources, by which a secure and convenient connection of the carrier withthe suction pipes is assured.

We. claim-- l. In a dyeing apparatus for textile fabric, a tank adaptedto contain dyeing liquid and having an inlet and an outlet in the bottomthereof, a hollow, perforated carrier for the fabric adapted to belowered into said tank and having ports adapted to register with saidinlet and outlet ports, a bell removably secured around said carrier andadapted to be lowered therewith into said tank, and suction meanscommunicating with the inlet and outlet for establishing a current ofthe liquid through the carrier and bell and fabric.

2. In a dyeing apparat-us of the kind described the combination with thecircular dye tank and the carrier for the material, this carrier havingthe shape of a hollow the tank thereby sealing the carrier, a

vacuum plant, a flexible pipe connection betweenthe said vacuum plantand the said bell, a cock in the said flexible pipe connection, wherebythe air can be withdrawn from the bell, the carrier and the material,when the carrier is dipped into the dye, while when the carrier isremoved from the tank, the air isprevented from arriving too rapidly atthe material, substantially as and for the purpose described.

3. A dyeing apparatus for textile fabric comprising a tank adapted tocontain dyeing liquid and having an inlet and an outlet in the bottomthereof, a hollow, perforated carrier adapted to be lowered into saidtank and having openings adapted to register with said inlet and outlet,said carrier having a horizontal partition dividing it into a lower andupper chamber, a pipe communicating with the upper chamber, a bellsurrounding the carrier and having air exhaust means connectedtherewith, and suction means connected with said inlet and outlet forestablishing a current of said liquid through the textile fabric.

4. A dyeing apparatus for textile fabric comprising a tank forcontaining dyeing liquid, a carrier for textile fabric, a bellsurrounding the carrier and fabric, means coacting with the liquid forexhausting air from the textile fabric and means for establishing acurrent of the liquid through the fabric while the air is exhaustedthereA from.

In testimony whereof we have hereunto set our hands in presence of twowitnesses.

HERMANN WINDRATH. HUBERT EICKEN. Witnesses:

Louis VANDORY, OSCAR DEPNER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

